This is a Tempearl Biribiri Guard. By using it on outlets in areas with water, it protects people and homes from electrical leakage. It was left unused at home, so please consider it as a used item. There is yellowing on the plastic. Tempearl Biribiri Guard, an electric shock prevention outlet guard GR-XB automatic circuit breaker. For AC100V 15A. Can be used with household outlets. No returns accepted.